4. How to useThis product is not set to switch, just massage pressure to the location of the need to massage can begin massaging.(1) This massage uses three AAA batteries(2) Whether sitting, standing or lying are free to use(3) Replace the battery after the massage snapping massage the parts of the hand touch the top of the massage touch power switch motor rotation can be(4 )massage can be a little harder to press the machine to enhance the massage intensity can also rotate back and forth in the massage area.(5)The compact, portable, live, work and learn the essential health care productsProduct Description: Plastic body massager